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All Journal Journal of Tropical Soils Bioscientiae, Jurnal ilmu ilmu Biologi Makara Journal of Science Herbal Medicine Journal Journal of Food Security and Agroindustry
Nur, Hasrul Satria
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Environmental Science Immunology & microbiology Veterinary

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UKSESI MIKROBA DAN ASPEK BIOKIMIAWI FERMENTASI MANDAI DENGAN KADAR GARAM RENDAH Nur, Hasrul Satria
Makara Journal of Science Vol. 13, No. 1
Publisher : UI Scholars Hub

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Abstract

Microbial succession and biochemical aspects of mandai fermentation at low salt concentration. Mandai is fermented food that traditionally made from the flesh of jack fruit (Arthocarphus champeden Spreg.). Usually mandai is made as high salt concentration. However, the objective of this research is to study the succession and biochemical aspects of microbials during fermentation at low salt concentration (10% w/v) for 14 days. During the period of fermentation microbial cell numbers and biochemical aspects were observed at the 3rd, 5th, 7th and 14th day. Total cell number of bacteria and yeast were measured by pour plate method. The measurement was also conducted on flesh before incubation. The biochemical aspect observation included the contents of reducing sugar, N-total, salt, and pH. The research results indicated that the pattern of microbial succession occurred the fermentation. Yeast cells grew dominantly (2.8 x 109 CFU/g) on the 5th day fermentation but bacteria were dominant at the end (1.1 x 107 CFU/g). The highest decrease of reducing sugar and N-total contents were 0.240% at the 14th day and 0.159% at the 5th day, respectively. However, salt concentration was relatively stable and pH was varied within the range of 3.71-6.12 for the whole period fermentation.
Emisi Gas CH4 dan CO2 serta Perubahan Kadar C-Organik pada Pengomposan Tandan Kosong Kelapa Sawit dan Rerumputan Menggunakan Bakteri Selulolitik Indigenous Pasang Surut Nur, Hasrul Satria; Mawar, Silvia; Hadi, Abdul
Bioscientiae Vol 22, No 1 (2025): Bioscientiae Volume 22 No 1
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/b.v22i1.14558

Abstract

Oil palm empty bunch and grass, are sorts of agricultural waste, that contribute to evolving gas emissions--methane (CH4) and carbon dioxide (CO2).  Therefore, agricultural waste management to compost is one system to minimize the gas emissions in oil palm plantations.  Generally, using bio-decomposer lignocellulolytic bacterium is the way to speed up the composting.  Bacillus brevis BRT-1 and Bacillus megaterium BTB-1, having potency as bio-decomposer agents, are members of cellulolytic bacteria origin of soil swamps tidal.  Adding cellulolytic bacteria indigenous into the composting of oil palm empty bunch and grass are the objectives in our studies to observe, i.e. C-organic changes patterns, methane, and carbon dioxide emissions.  Two inoculants of cellulolytic bacteria comprised of BRT-1 and BTB-1 isolates were applied to the two substrates in composting the agricultural waste by adding cow manure.  The parameters of analysis were observed during twenty days, in addition, C-organic substrates were measured by the Walkley and Black method.  Especially for methane and carbon dioxide were observed by Micro Gas Chromatography, meanwhile, the addition of two inoculants of cellulolytic bacteria had a significant impact on C-organic changes during the composting.  Otherwise, using cellulolytic bacteria in this study showed no significant effect of methane and carbon dioxide.  Moreover, the result is also some of the depicted parameters, particularly of C-organic contain undergone alleviate on oil palm empty bunch substrates of BTB-1 – KS treatments.  Besides that, the C-organic content of grass substrates also decreased in BTB-1 treatments, furthermore, the methane emissions for oil palm empty bunch underwent fewer BRT-1+KS treatments.  On the other sides, the methane emissions increased during observation in grass substrates of BRT-1+KS treatments.  The same cases for the carbon dioxide emissions in oil palm empty bunch substrates are also decreased in BRT-1 treatments.  Meanwhile, the carbon dioxide emission underwent the escalation of grass substrates in BRT-1+KS treatments.  The utilization of cellulolytic bacteria Indigenous has the potential as a bio-decomposer agent in composting especially in accelerating C-organic changes.
Uji Potensi Probiotik Bakteri Asal Pangan Fermentasi Lokal Kalimantan Selatan Berbahan Dasar Tumbuhan Tigarun (Crataeva nurvala Buch-Ham) Fasha, Gusti; Rahmi, Nazarni; Nur, Hasrul Satria
Journal of Food Security and Agroindustry Vol. 3 No. 1 (2025): FEBRUARY
Publisher : PAKIS JOURNAL INSTITUTE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58184/jfsa.v3i1.598

Abstract

Setiap daerah memiliki pangan lokal yang sangat beragam tidak terkecuali provinsi Kalimantan Selatan. Pangan lokal Kalimantan Selatan yang khas salah satunya pangan fermentasi dari tumbuhan tigarun (Crataeva nurvala Buch-Ham). Penelitian ini bertujuan untuk mengeksplorasi potensi probiotik dari Lactobacillus plantarum JBS4 yang berasal dari fermentasi tigarun (Crataeva nurvala Buch-Ham), salah satu pangan fermentasi khas Kalimantan Selatan. Isolat Lac. plantarum JBS4 diuji ketahanannya terhadap pH asam dan garam empedu serta diuji sifat hemolisisnya untuk menilai aspek keamanannya sebagai probiotik. Uji hemolisis menunjukkan bahwa isolat ini termasuk dalam kategori γ-hemolisis, menandakan bahwa bakteri ini tidak bersifat patogen dan aman untuk dikonsumsi. Pada uji toleransi terhadap pH asam, isolat ini mampu bertahan pada kisaran pH 2,0 hingga 4,0, dengan jumlah koloni tertinggi pada pH 4,0. Selain itu, isolat juga dapat bertahan dalam media dengan garam empedu 0,3% meskipun terjadi sedikit penurunan jumlah koloni dibandingkan kontrol. Hasil penelitian ini menunjukkan bahwa Lac. plantarum JBS4 memiliki ketahanan terhadap kondisi pencernaan manusia sehingga berpotensi dikembangkan sebagai probiotik dari pangan fermentasi khas Kalimantan Selatan. Penelitian lebih lanjut diperlukan untuk mengkaji manfaat fungsionalnya secara in vivo serta potensinya dalam aplikasi pangan dan kesehatan.
Uji Potensi Probiotik Isolat Lactobacillus plantarum JBSxH.6.4 Asal Fermentasi Tigarun (Crateva nurvala Buch.-Ham.) Secara In Vitro Fasha, Gusti Nur Aida; Nur, Hasrul Satria; Rahmi, Nazarni
Herbal Medicine Journal Vol 8 No 1 (2025): Herbal Medicine Journal
Publisher : Program Studi S1 Farmasi, STIKES Senior, Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58996/hmj.v8i1.145

Abstract

Lactobacillus plantarum JBSxH.6.4 isolate was isolated from fermented food of Tigarun (Crateva nurvala Buch.-Ham.), a traditional fermented food from Kalimantan. This study aimed to evaluate its probiotic potential through a series of in vitro tests, including hemolysis analysis, tolerance to acidic pH and bile salt, inhibitory activity against pathogenic bacteria, and interactions with nonpathogenic bacteria. The results showed that Lac. plantarum JBSxH.6.4 exhibited γ-hemolysis, confirming its non-pathogenicity. The isolate survived at pH levels of 2.0, 3.0, and 4.0, demonstrating its acid tolerance. It also exhibited resistance to 0.3% (w/v) bile salt, indicating its ability to survive in the digestive tract. Furthermore, Lac. plantarum JBSxH.6.4 inhibited the growth of Escherichia coli ATCC25922 at 8,08 ± 0,34 mm and Staphylococcus aureus ATCC25923 at 8,95 ± 0,15 mm, suggesting its antimicrobial properties. Additionally, interaction tests indicated that it did not inhibit Lactobacillus acidophilus FNCC0051, supporting its compatibility with beneficial gut microbiota. These findings suggest that Lac. plantarum JBSxH.6.4 meets key probiotic criteria and has potential applications in functional foods and health industries. Further studies, including in vivo evaluations, are recommended to confirm its efficacy and safety for human.
Pemanfaatan Bakteri Selulolitik dan Xilanolitik yang Potensial untuk Dekomposisi Jerami Padi Nur, Hasrul Satria; Meryandini, Anja; Hamim, .
JOURNAL OF TROPICAL SOILS Vol. 14 No. 1: January 2009
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2009.v14i1.71-80

Abstract

There were 3 prospective isolates of cellulolytic bacteria resulted from the total of 31 isolates we found, i.e. C4-4, C5-1, and C11-1.  Four combinations of bacteria including C4-4 + Xilanolytic (A), C5-1 + Xilanolytic (B), C11-1 + Xilanolytic (C), 45I-3 + 234P-16 (D), and control (E, without bacteria) were applied as inoculant of rice straw decomposition.  In the incubation period the pH-H2O value of C4-4 + Xilanolytic (A) and C5-1 + Xilanolytic (B) was relatively stable.  The C/N ratio of all treatments decreased after 3 weeks of incubation.  The C/N ratio value of A, B, C, D and E treatments were 22.48, 23.43, 27.49, 26.82, and 29.53 respectively.  Decomposition rate all of combination treatments were faster than the control.  The content of macro-micro nutrient of A, B, C, and D treatments increased in the end of measurement, while the control didn’t.  The physical characteristic of substrate after incubation was better in A and B treatments that others.  The result indicated that the combination of C4-4 + Xilanolytic (A) and C5-1 + Xilanolytic (B) bacteria were the best combination for decomposition of rice straw. 
Co-Authors Abdul Hadi Anja Meryandini Fasha, Gusti Fasha, Gusti Nur Aida Hamim Hamim Mawar, Silvia Nazarni Rahmi, Nazarni